Single Opt-In or Double Opt-In: Which is Better?

Quick. Can you name the most important aspect of a solid email marketing strategy?

If you guessed “building an email list,” give yourself a gold star (or a pat on the back). After all, if you don’t have an email list, it becomes quite challenging to market to your prospects and customers through email.

There are many ways to grow your list, 13 of them discussed here. However, no matter which tactics you choose to implement, a decision you must make is whether to use a single or double opt-in process.

Some definitions:

Single Opt-In: A subscriber provides their email address to a company, usually via a web form. As soon as they hit submit or enter, the user is added to the email database. In some instances, a company will send out a thank you email indicating that you’ve successfully been added to the list. Other times, the thank you will come in the form of a welcome email. Either way, no other action is required by the subscriber.

Double Opt-In: A subscriber provides their email address to a company, usually via a web form. However, before they are added to the email database, they must reply to the email or click on a link to “confirm” their request to opt-in. If they don’t reply or click the link, they are not added to the list.

Why I’m an Advocate for Single Opt-In

Within the email marketing circles, the single vs. double opt-in discussion is often hotly debated. There are certainly pros and cons for each side. Personally, I think using a double opt-in process is a terrible idea. Here’s why:

I have just gone through the effort of raising my virtual hand to say I want to receive emails from you or your company. I’ve said yes. I’ve opt-in. Then, you send me a confirmation email which basically says, “Are you really sure? Do you really want to get emails from us?” I understand the argument that you’re ensuring I’m a real human being and not a bot; however, you’ll learn that after the first (welcome) email is sent. If it doesn’t bounce, it’s likely to be a valid email address.

On top of that, what if that confirmation email never reaches my inbox? According to some new research by Return Pathonly 76.5% of all commercial email reaches the inbox. Are you willing to risk losing nearly 25% of your opt-ins because they never saw the confirmation email?

Finally, what if you send that confirmation email and it never gets opened or clicked? Again, another lost subscriber.

I recently opted in to receive emails from Staples. The next day, I received an email with the subject line, “Please confirm your email subscription.” When I opened the email, this is what I saw:

Staples confirmation email - images off

With images off, the only indication I have that I need to take an action (confirm) is a small link in the preheader. What if I simply ignored this email? What if I opened it, but never enabled images to see the call to action? What if I deleted it before reading? The answer: I would not be subscribed to the Staples email marketing program – even though I asked to be!

Just to be fair, let’s look at that same confirmation email from Staples with images on:

Staples confirmation email - images on

Now we can clearly see the call to action as well as what to expect from Staples emails. The email is actually quite inviting and very well done. However, I stil stick by my point: Requiring me to double opt-in before I receive your first “real” email makes me – the subscriber – do more work then necessary. Why make it harder than it has to be?

That being said, I could be wrong. I’ve been wrong before. Once. (Don’t tell my wife). Have you found success using a double opt-in approach? Have you tested single vs. double? I’d love to hear more. Please use the comments below.

Cheers.
DJ Waldow

12 comments
Ashley Sue Bullers
Ashley Sue Bullers

Completely agree with you.  Regardless of the points made by other media specialists here in the comments, I have to say in my experience marketing, I - and many others - are like you.  ANNOYED at being sent an email saying I have to opt-in again.  I just did!  Geez already!  I am already starting to regret it.  It appears you aren't very efficient in your own strategy and such, so perhaps I do not really want to receive your messages.   And, as I have experienced before, someone I end up receiving emails marketing from companies that I either did not sign up for or do not remember doing so.  I simply go to the bottom of those emails and hit unsubscribe.  Done.  I would rather have to do that than be bombarded with the "Are you sure you really, really, really want to subscribe?!" mentality of the double opt-in.

Anirudh Bahadur
Anirudh Bahadur

@Ashley Sue Bullers Yes, half of the subscribers that opt in don't even care to confirm because it seems like a hassle, doesn't it. To me it is, if I were to confirm my opt in. But @Tom Kulzer  below mentioned a really practical possibility that might happen sooner or later. So I am still under the dilemma if I should be using single or double opt in. 

AshleySue
AshleySue

@Anirudh Bahadur You know, I completely agree.  While it drives me nuts, @Tom Kulzer 's point about the spam and people using fake addresses for whatever reason makes it a valid procedure still. Unfortunate, but true. Heahea

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Tom Kulzer
Tom Kulzer

Disappointed that someone with your experience in the email world would take this side.

 

5-15% of any business opt-in list is bogus entries. Either purposeful or malicious, they are outright bogus entries that don't belong to the person or bot that's filling out a form. At least half of those are *real* deliverable addresses that you are now spamming by not using a confirmed opt-in process. Sure, go ahead and run single opt-in, but sooner or later those awful data management practices will catch up with you and your emails will stop getting delivered to all your subscribers not just the ones that never asked for your emails.

DavidWLocke
DavidWLocke

@craigdeakin @djwaldow Just make sure I can get out, and get out quick. Don't make me come back again, or worse call/email.

LukeAnker
LukeAnker like.author.displayName 1 Like

Interesting topic. In Germany for instance, it’s highly recommended to use DOI. Not least because of legal aspects - only DOI delivers enough probative value for an opt-in. I summed up a few tips some weeks ago which might complement your thoughts: http://www.emailmarketingtipps.de/2012/03/07/double-opt-in-12-tips-to-get-a-maximum-outcome/ . Greets from Berlin, René.

djwaldow
djwaldow moderator

 @LukeAnker GREAT post(s). Thanks so much for sharing. I'll be referencing these in the future for sure. Appreciate you offering an alternative approach.

Angelique
Angelique

The major email services force everyone to use double opt-in, but at least one -- My Newsletter Builder, which I use -- doesn't REALLY require it. Once someone fills out my form, they will begin receiving my newsletters unless I take the extra step to only send it to those people who confirm. I don't. If they've filled out the form, I send. I wish I could get rid of the pretense of that "please conform" message.

djwaldow
djwaldow moderator

 @Angelique Thanks for your comments. I'm not sure that the major ESPs actually force it. I was under the impression that most do not. Can you share who you were referring to?

Angelique
Angelique

 @djwaldow The only one I remember is Constant Contact, although I investigated several services before I choose My Newsletter Builder. I've found that there are "workarounds" for most of the services' rules, but I really hate having to do that. For example, only with MNB is it perfectly okay to simply add someone to your list. Yes, I know that this is the practice of evil, evil spammers. However, as the captain of our block watch, it's an essential option for me, because some of the people who want to receive safety notifications can barely use their computers, much less figure out how to subscribe. And double opt-in? Forget it! I have members who regularly accidentally unsubscribe and then call me on the phone to add them back on.